A Bidimensional System of Facial Movement Analysis Conception and Reliability in Adults

Figure 2

Principle of the Kinovea-derived method. Maximal contractions. Each blue line indicates distance measurements corresponding to the selected muscles during maximal contractions: (a) frontalis; (b) corrugator; (c) orbicularis oculi; (d) zygomaticus; (e) orbicularis oris; (f) buccinator. Note in (e) and (f) that in the subject selected the two cheek markers 4 cm out from the oral commissure fail to capture the maximum lateral cheek in/excursions.

(a)

(b)

(c)

(d)

(e)

(f)